Mixing device



Aug. 22, 1933. A. M. HRBsMAN 'mj Al.

MIXING DEVICE Filed March 6. 1933 WWK Q A,

Patented Aug. 22, v1933v `r A, g .j ya

i 1,924,038 "f y MIXING DEVICEv Abraham M. Herbsman, Huntington, Park, and.

`vRodney B CampbelL WalnutPark, Calif., as-

`signers, by direct Vand mesne assignments, to

when

Industrial l Patents,l Ltd., Los Angeles, Calif., a

' Corporation of California `Application March 6,1933; Serial vNo. 659,776

` 4 omims. (o1. isirinfY Ourinvention relates to mixing devices and particularly to a; novel device for receiving 'a plurality of iiuids 'and discharging a'homogefV neous mixture of these'iiuids.

' Although useful in Amany. arts, thev mixer: of-

VAour'inv'ention is particularly adapted 'to use in ment thepetroleum industry iormixing various chemi-` cais tgt-be' injected into a pipev line carrying. a petroleum emulsion under high pressurefv In the petroleum industry, oil is frequently taken from wells in the form of an emulsion of oil and water, it being vnecessary to separate the water from the oil prior'to the refining process. Y treating emulsied oil includes mixing a chemical -with the emulsion which tends to coagulatethe dispersed. phase so that the latter will readily separate out by gravity.

The chemical usually used for treating oil A emulsions consists of two liquids which, for `maximum eiiectiveness, should be freshly mixed just before being injected into the pressure line carrying the oil and water emulsion.

it is an object of our invention to provide a Y: mixer for receiving a plurality of separate chemicals under pressure anddischar'ging a homogeneous mixture of said chemicals.

A further object of our invention is to pro-- n f tion, taken in connection with the accompanying drawing, in which;v

1 is a planview oi a preferred embodioi our invention partly broken away to show the construction oi the interior` thereof.

Fig. 2 2-2 oi :i

@D621 the l l2is divided horizontally by upper and Vlower walls 18 and 19 respectively, the wall i8.k

being connected to the top wall of the` shell 12 by al transverse'wall 20 to form inlet chambers .L 2l and V22,'ports 23 and 24 being formedin :the

Thev process 'usually `employed for is aV sectional view taken on the line4 4 are horizontal sectional viewsV l5 as'ishown in Fig. 2.' The interior of wall' i8 in communication the chambers 21* and 42,2Y respectivelyf Extending-downwardly from the walllS into the 'space betwe'enithe walls i8 andvv i9 is an annular wail-'52rdwhich' supports a horizontally disposed cup-s'haped'wallY 27, thed latter forming a mixing chamber 28.' The space between the vwall 27 and the lower wall?? i9 constitutes" anotherY mixing chamber 29.y

Extending downwardly from the eupesh'aped wall 27 into the chamber29 is an annular skirt 30.

Formed in the wall26is a pluralityof holes 31 which allow communication',between the chambers 28 and 29, these holes extending downwardly and being disposed spirally relative to the Yvertical axis of the mixer 10.

The wall 19 has a central hub 33, .an'upper' portion of which extends into thel skirt 30. The

hub 33Vhas a central opening 34 therethrough in ported from the walls of Vthe opening 34 byhelically. disposed mixing blades 36.

which a core 35 is provided, the latter'being sup-1 7'5 and is supported thereon by webs v41, the latter being separated by passages 42 leading from the chamber 39 to the discharge opening l5 as shown in Fig. 4.

Operation A plurality of liquids is thoroughly mixed by the mixer 10 of our invention in` the following manner: The inlet chambersv 21 and 22 are each of supply by means of inlet pipes 45 and 46, the

sav

^ supplied witha liquid from any suitable source latter'being received bythe threaded openings 13 and 14 respectively of the shell 12. The liq- '95 y f uids to be mixed pass from the chambers 21 Vand 22cthrough the openings 23 and 24 into the chamy ber 2,8 where the first mixing takes place. From the chamber 28 the mixture passes through the holes 31 into the chamber 29, the mixture being further agitated by a'rotary motion set up in the v chamber 29 asthe liquid passes through the A spirally disposed holes 3l. From'the chamber 2l the lmixture passes under the skirt 30 and downward through the opening 34 of the hub 33. VAs

theA mixture passes vthe helicalblades 36 into the cup 40 urther'agitation occurs from the rotary motion setup by the angularityof 'the blades 36, l

the direction of rotation of the fluid in the cup 40 being opposite to the rotation in the. chamber 29.`

From the cup 40 the mixture is forced through the passages 42, into the discharge opening 15, and is delivered to any desirable destination, such as the aforementioned oil pipe line, by means of a suitable discharge pipe 47.

It is thus seen that the mixer of our invention is capable of producing a thorough mixture of component fluids, and that our device is simple .to construct, void of moving parts and particularly well adapted to receive uids under pressure.

We claim as our invention: 1. A liquid mixer comprising a body having two inlet and one outlet openings, a primary posed ports with said primary central mixing chamber, a `secondary central mixing chamber, connected by a radial passage with said annular chamber, and a passage leading from said secondary central chamber.

3. A liquid mixerV comprising a body having two inlet and vone outlet openings, and a series of intermediate chambers, said chambers being sucz Ycessively centrally disposed and annularly disend of said series and said outlet opening with a chamber at the other end of said series.

4. A liquid mixer comprising a body having two inlet and one outlet openings, a pair of annular chambers formed separately in said body,

a pair of centrally disposed chambersV in said body, said inlet openings discharging at adjacent points into one of said centrally disposedchambers, passage means for conducting Huid thus discharged into said centrally disposed chamber to one of said annularly disposed chambers in a manner to give this Huid a rotary motion, passage means for conducting said rotating fluid into a second centrally disposed chamber so as to again give a rotating motion to this fluid, pas,- sages connecting said second centrally disposed chamber with a second annular chamber, and passage means connecting said second annularly disposed chamber with said` outlet opening.

ABRAHAM M. HERBSMAN. RODNEY B. CAMPBELL. 

